Having trouble surviving on my rogue in arena's in general, especially in 3v3. I usually play with warrior/dk/hunter(s), not exactly the most viable comps, but I always seem to get trainwrecked in arenas. Not sure if what I am doing wrong or if rogues are just supposed to die. What do I need to be keeping up and when should I be timing things?

The only way to improve your gameplay and your survive is.... awareness.

Keep the enemy CDs at your eyes (those burst ones and those high defensive ones) and adapt your style.
If you see a War pops all his OMG I WILL KILL YOU CDs you might better vanish/evasion/trinket etc.

"The line it is drawn The curse it is cast
The slow one now Will later be fast
As the present now Will later be past
The order is Rapidly fadin'.
And the first one now Will later be last
For the times they are a-changin'."